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NCE > Products > Mitsubishi LV Product Information
Low Voltage Air Circuit Breakers
NCE is a solution partner of Mitsubishi Electric.
Together with Mitsubishi, NCE has developed various Low Voltage Switchboards (LVB) and Motor Control Centres (MCC)
based on Mitsubishi LV switchgear and controlgear for different applications for different industries.
NCE provides technical support and switchgear/controlgear spare parts for our customers to ensure smooth and continuous operation and to facilitate testing & commissioning, maintenance, upgrading, modification and even replacement.
Below, you will find some technical information of the major components used in NCE Switchboards and MCC. You can also download product catalogues directly.
The Mitsubishi WS Series Air Circuit Breakers (ACB) provide high breaking performance and reliability for demanding low voltage applications. Ratings are quoted for 415V systems first, followed by 690V where applicable. The Mitsubishi FR-F840 series inverters deliver enhanced energy savings for fan, pump, blower and compressor applications.
For further information and enquiry about spare parts, please contact Mr. Stephen Yuen (stephen.yuen@nce.com.hk).
Or see Contact Us page for more contact information.
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Product Information
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Mitsubishi WS AE Air Circuit Breaker (ACB)
■ Standard: IEC 60947-2, EN 60947-2 (CE), JIS C 8201-2-1, GB/T 14048.2 (CCC)
■ Frame Size & Rating: AE630-SW to AE6300-SW (630A, 1000A, 1250A, 1600A, 2000A, 2500A, 3200A, 4000A, 5000A, 6300A)
■ Version: Fixed-Mounted or Drawout (Withdrawable)
■ Pole: 3-Pole or 4-Pole
■ Connection: Horizontal terminal, Vertical terminal, Front terminal
■ Breaking Capacity Icu at 415V: 42kA (N), 50kA (S), 65kA (H), 85kA (L), 100kA (V)
■ Breaking Capacity Icu at 690V: 30kA (N), 35kA (S), 50kA (H), 65kA (L), 75kA (V) for AE630-SW~AE2000-SWA; 30kA (N), 35kA (S), 50kA (H), 65kA (L), 75kA (V) for AE2000-SW~AE6300-SW
■ Rated Insulation Voltage Ui: 1000V
■ Rated Impulse Withstand Voltage Uimp: 12kV (improved from 8kV of previous generation)
■ Electronic Trip Relay: True RMS detection method, independent phase detection, strong against deformed waveforms (suitable for inverter applications)
■ Protection Functions: Overload protection (L), Short-circuit protection (I), Ground fault protection (G), with optional external I/O units
■ Communication: MODBUS (RS-485), optional network interface unit and I/O unit for remote ON/OFF control and spring charge via network
■ Display: Optional display unit for panel board (DP1 equivalent function) to view measurement information outside the panel
■ Safety Features: Over current and ground fault protection can work with power from internal CT even if control power is off; improved insulation performance (Uimp 12kV)
■ High Operating Durability: Mechanical durability sharply improved compared to former models; AE630-SW~AE1600-SW: 20,000 cycles, AE2000-SW~AE6300-SW: 10,000 cycles (3P) / 5,000 cycles (4P)
■ Compact Design: AE2000-SWA and AE4000-SWA are compact versions reducing panel size requirements
■ Accessories: Auxiliary switch, motor charging device, closing coil (CC), shunt trip device (SHT), under-voltage trip device (UVT), alarm switch, operation counter, padlock device, door interlock, safety shutter
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Mitsubishi FR-F840 Variable Speed Drive (Enhanced Energy-Saving Inverter)
■ Rating (380V to 500V, 50Hz/60Hz): 0.75kW to 315kW (and up to 560kW separated converter types via FR-F842)
■ Basic Components: Integrated Compact Unit / Chassis Unit with built-in DC reactor (for models from 0.75kW up to 55kW / FR-F840-00023 to 01160) and Soft-PWM control technology
■ External DC Choke Requirement: Models rated at 75kW and higher (FR-F840-01800 up to 315kW / FR-F842) do not have a built-in DC reactor and require an external DC reactor (FR-HEL series) to be connected separately
■ Application (1): Optimized specifically for fans, pumps, blowers, and compressors in industrial environments
■ Application (2): Specialized functions include dual-loop PID control, PID pre-charge, multi-pump control, cleaning function, and load characteristics measurement
■ Control Methods: Selectable among V/F control, Advanced Magnetic Flux Vector Control, and PM motor control (sensorless vector)
■ Safety Features: Built-in Safe Torque Off (STO) complying with EN ISO 13849-1 PLd/Cat.3 and EN 61508 / EN 61800-5-2 SIL2
■ Overload Capability: Super Light Duty (SLD): 110% for 60s, 120% for 3s; Light Duty (LD): 120% for 60s, 150% for 3s
■ Operator Interface: USB A connector (host) for parameter backup and logging, mini-B for PC hookup via FR Configurator2
■ Communication Protocols: BACnet® MS/TP, MODBUS RTU, and Mitsubishi Inverter Protocol standard (Ethernet variants support CC-Link IE Field Basic, MODBUS/TCP, and BACnet/IP)
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